Update input and select styling for GlobalCollect

Adds styling from 2014 appeal to gc stylesheet and to the sheet
used for iframe content loaded from GlobalCollect.  Iframe css
slightly modified to tighen up vertical space so scrollbars do
not appear when error messages are present.

Change-Id: Id195e2599e11aec3a420babc2b518ad5e06669a2
Clean up GlobalCollect style sheet

Delete stuff that's never used, consolidate styles for
.amount_header and .cc_header

Change-Id: Ib3272cc4e333a21e675915b8b7b80503201e374f